New lawyer Lin Xiaoyu enters a top domestic law firm with the ideal of justice. When he first entered society, he encountered a collision between law and reality: powerful and wealthy clients, tortuous cases, operations in gray areas of the law, and intrigues in the workplace. Senior sister Chen Jiesi and partner Wang Dachun are not only supporters on his growth path, but also representatives of the conflict between law and human relationships. Lin Xiaoyu and his team have been involved in criminal, civil, commercial, family and social hot cases, step by step uncovering the absurdity and excitement of the legal world. In each case, the protagonist makes difficult choices between justice, law, and emotion. Every victory or defeat brings humor and insights. In the end, Lin Xiaoyu used his own way to defend the law and humanity, and influenced everyone around him, making the law not only about law, but also about emotion, laughter, and society.